Metadata is widely interpreted as "data about data", however this is a highly simplistic notion, although it is included in the ISO11179 definition.
You could also argue that metadata is a description of data, however this covers an enormous range of topics.
Metadata covers two main areas:
- Data or information about, connected to or related to the concept being represented.
- A Description or definition of the data container that is being used.
In the first we are refering to things such as the lineage of the data, the ownership, the quality, the governance, the area of operations that the data is used in. For instance the electronic tracks that are generated by radar systems contain some very basic information about the object being tracked, normally it's position (lat-lon), and it's direction, although that may be a derived piece of data.
In the second case we are referring to the
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